ABSTRACT
Measurements of the middle ear pressure were taken during anaesthesia in 18 patients. Using nitrous oxide the middle ear pressure increased considerably. Other anaesthetics (i.e. anaesthesia with neuroleptics) did not show this remarkable change in middle ear pressure. To avoid complications by middle ear operations (tympanoplasty) we combine both methods of anaesthesia.
Subject(s)
Anesthesia , Ear, Middle/physiology , Acoustic Impedance Tests , Adult , Anesthesia/methods , Antipsychotic Agents , Female , Humans , Male , Middle Aged , Nitrous Oxide , PressureABSTRACT
Doubts of reliability of SISI-test are based on lack of understanding and knowledge of what this test can disclose and where it should be placed in an audiologic test battery. Examination of normal hearing medical students with the SISI-test showed much better results than comparable test figures of other authors. There is a distinct difference with regard to the test intensity as well as the test frequency. Results show that their is no reason to disqualify the SISI-test.
Subject(s)
Audiometry , Recruitment Detection, Audiologic/standards , HumansABSTRACT
A glioblastoma was induced in BD-II rats by weekly i.v. injections of methylnitrosourea and transplanted intracerebrally in numerous passages. The take rate was 100%. For the experiments with CCNU, solid pieces of tumour were implanted into the right parietal region. The cytostatically treated animals lived significantly longer. The untreated tumour rats had an average survival time of 18 days (counted from the time of transplantation), and the rats treated with CCNU had an average survival time of 28 days. The median values were 19 and 28 days.
